lakshwadeep Posted November 2, 2016 Share Posted November 2, 2016 Can anyone ID this? I believe it's a sponge but I haven't been able to find anything. it's about 2" long total, attached to the underside of live rock. Body appears to be made of a couple of long lines of tubes which form one large tube. I would not imagine that it's harmful but I'm more curious than anything. Thanks! Those look like colonial tunicates. Quote Link to comment
AVReefer Posted November 11, 2016 Share Posted November 11, 2016 Those look like colonial tunicates. Thanks, I think you're right. Quick research leads me to believe that they are harmless. Quote Link to comment
shampy Posted December 23, 2016 Share Posted December 23, 2016 any ideea what snail is it ? and what are those on the rocks ? guy in store had a whole aquarium full with this, and he said that are harmfull. for me look like duster worms, so i got a small rock. thanks. Quote Link to comment
markalot Posted December 23, 2016 Share Posted December 23, 2016 Feather dusters on the rock, no idea what kind of snail it is ... my guess would be some kind of nerite. Quote Link to comment
lakshwadeep Posted January 2, 2017 Share Posted January 2, 2017 Those are normal feather dusters, and the snail does look like a nerite (at least some type of herbivore). Many nerites are intertidal, so watch out if it climbs out of the tank (they can survive but could get lost and die). Quote Link to comment
TheStar Posted February 10, 2017 Share Posted February 10, 2017 Captured a few pictures of what I think are Stomatella, and thought it would be worth post them. 1 Quote Link to comment
RayWhisperer Posted February 10, 2017 Share Posted February 10, 2017 Yup, stomatella. 1 Quote Link to comment
cnseekatz Posted February 10, 2017 Share Posted February 10, 2017 Captured a few pictures of what I think are Stomatella, and thought it would be worth post them. I miss my Stomatellas... I had a gang of them for a while, then they all seemed to disappear... Quote Link to comment
KingCatastrophe Posted February 19, 2017 Share Posted February 19, 2017 So I've been doing some looking through here and maybe I've missed it. But I can't find what the heck this is! I got a new piece of zoanthids the other day and per the recommendation of the establishment, I didn't dip it. I noticed an oddity near the base of the coral earlier, and saw it move slowly. It eventually made its way on to the shell of a slug that was also on the base of the coral and I pulled them both off and identified the first noted critter as a nudibranch. I'm brand new to the reef world so I've been doing tons of reading and video watching and I stumbled into this thread. Thumbs up. Lots of useful stuff. But the real question I have is regarding the purple and white (ish) striped arm/ tentacle that I saw move as I lifted the snail off earlier. It raised suspicions. I used the turkey baster and blasted water several directions and eventually what popped out struck me as a very small, maybe 5/8" across the arms, starfish. But it has three very long "arms" and three very short "arms".... and as I understand it, starfish don't have 6.......? It strikes me as something undesiresble, but would love to know what the heck it is. Side question- was my snail trying to eat the zoanthid? I also saw one of the snails on the base of a leather coral... pic of the snail with the nudi on it and the star thing are below... again, all of this is new to me and I have only been doing the best I can with the info I have gathered from a wide variety of sources, making the best decisions possible. Thanks for any help!! Quote Link to comment
RayWhisperer Posted February 19, 2017 Share Posted February 19, 2017 Can't make much of the pic. nudis are generally a bad thing. Besides it being likely to be a predator of that particular coral. Even if it isn't, they are usually specialists where diet is concerned. As for the star, it's what is commonly called a micro brittle star. Very common hitchhiker, very good detrivore. as for the snail, I can't be sure. However, the shell looks like a Florida cerith shell. If so, it's fine. 2 Quote Link to comment
Astinus Posted February 19, 2017 Share Posted February 19, 2017 Totally agree with Ray...The Starfish looks like a Brittle Star. Brittle Stars are a good Hitchhiker Starfish can and do regenerate arms (Legs) when broke off. U mentioned the Nudi was a hitchhiker on a Zoanthid. Bad stuff. There is a Nudibranch that eats Zoanthids and are very difficult to spot. I am of a mind, thinking, if u saw 1 Nudi, u may have more hiding in ur Zoas. Lastly! to NR! @KingCatastrophe Quote Link to comment
JillianAG Posted March 13, 2017 Share Posted March 13, 2017 This is an awesome thread - I've been skimming through it for a bit - can anyone I'd this little guy? In all of my salt experience I've never seen one come in on LR. It has feathery like extremities that it keeps outstretched and then one at a time pulls them into its center (in a deep hole so I can't get a good look!). Extends about 1.5-2" from the hole. Clueless .... thanks!! Quote Link to comment
Nano sapiens Posted March 13, 2017 Share Posted March 13, 2017 ^^ Can't see all of it, but looks like an Echinoderm (possibly a Crinoid Featherstar or a Basket Star, there are many different types of both). Quote Link to comment
JillianAG Posted March 13, 2017 Share Posted March 13, 2017 That would be awesome - because after someone suggested it may be a small sea apple, I googled it and found several pics that match it and I'm quite frankly terrified! So I'd love for it to be a star!! Thanks so much ? Quote Link to comment
RayWhisperer Posted March 13, 2017 Share Posted March 13, 2017 It's a sea cucumber. I'm not sure of the type, obviously. However, I've had quite a few of them. Great filter feeding hh. 1 Quote Link to comment
JillianAG Posted March 14, 2017 Share Posted March 14, 2017 I am hoping to keep it healthy so it doesn't die and kill my fish! I have no personal experience with sea cukes or sea apples. I'm guessing that my tank isn't going to cycle - possibly because I used RO water and 14+ lbs of very established live rock and a few inches of established sand. My levels have stayed at zero from day one. So I hope he stays healthy enough for me until I can rehome him! Quote Link to comment
RayWhisperer Posted March 15, 2017 Share Posted March 15, 2017 Dendrochirote Holothuroid sea cucumber as per WWM That look like a match? http://www.wetwebmedia.com/cukeidf3.htm 1 Quote Link to comment
JillianAG Posted March 28, 2017 Share Posted March 28, 2017 Yes!!!!!! That's exactly what it is!!!! How do I care for it? Is it in the same family of critters that will crash my tank if he dies?? Quote Link to comment
RayWhisperer Posted April 2, 2017 Share Posted April 2, 2017 Didn't see your post, sorry. ive never heard of them crashing a tank. However, that doesn't mean it isn't possible. They are generally fairly hardy, IME. Though, I've had them in established systems. Feed the tank a mix of phyto and zoo plankton, though do it sparingly, lest you pollute your tank. Once your tank gets well established, you can cut the feedings completely. Though, I would suggest a dose of phyto once or twice a week to keep populations of zooplankton up in your tank. They feed on floating detritus and bacteria, as well, I'm guessing, since they seem to be pretty hardy. 1 Quote Link to comment
JillianAG Posted April 6, 2017 Share Posted April 6, 2017 Thanks so much :-). Well my tank is 6-8 weeks old and never cycled! My params are perfect - so I'm guessing he's happy in here. I haven't fed him a thing though - the live rock I purchased was from a really established supply - maybe that is helping. He puts out his feeder tentacles and looks awesome and healthy! But I will take your advice as I want him to thrive as long as he won't hurt anyone or thing. I just added my first four coral frags two weeks ago and everything looks great! I credit all of this success (knock on wood) to the LFS lr!! Wish me luck :-) thanks! Quote Link to comment
david33759 Posted May 14, 2017 Share Posted May 14, 2017 Can you tell me if this is a form of bubble algae? I have some green bubble algae I've plucked already but this doesn't look much like it aside from the color. This is a tube shaped thing. Quote Link to comment
RayWhisperer Posted May 15, 2017 Share Posted May 15, 2017 Looks like chaetomorpha to me. It's still very small, though. So, I guess it could turn out to be something else. 1 Quote Link to comment
david33759 Posted May 15, 2017 Share Posted May 15, 2017 Thank you, RayWhisperer! After looking at chaetomorpha online, that's what it is! Not sure if I should take it out or not as I don't have a sump/refugium. Any thoughts? Quote Link to comment
RayWhisperer Posted May 15, 2017 Share Posted May 15, 2017 It doesn't ever seem to take hold in any reef I've had. I don't know if that's because of the light spectrum, or the flow, or some other reason. Probably just better to get rid of it, just in case, though. Better safe than sorry. Quote Link to comment
ashwin1224 Posted May 30, 2017 Share Posted May 30, 2017 Ive searched a lot but I cannot seem to finalize what these things are. They seem like feather dusters, but I cannot see them growing out of a tube, instead they seem to be growing out of rock crevices. I can be mistaken is this is my first tank, but to me they seem like something else. Also, unlike feather dusters, they seem to have short and stouty bristles instead of feathers. What are these things? Quote Link to comment
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